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Featured researches published by Osamu Kawamata.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2008

A Case of Gastric Necrosis with Gastric Cancer

Toshihiro Murata; Hirokazu Uetsuka; Masashi Uda; Osamu Kawamata; Hajime Nakai; Tamotsu Ohta

症例は59歳の男性で, 腹痛を主訴に受診した. 来院時, 上腹部を中心に筋性防御を認め, 板状硬であった. 血液検査では炎症反応の上昇と, 肝機能・腎機能障害およびCKの上昇を認めた. CTでは胃壁の浮腫による著明な肥厚と少量の腹水を認め, 上腹部腸管を原因とする腹膜炎の診断にて審査腹腔鏡を行った. 血性の腹水および胃の虚血性変化を認めたため, 術中胃内視鏡検査を施行した. 胃体中部から前庭部にかけ粘膜の脱落と潰瘍性病変および暗赤色性の変化を認め, 胃壊死と診断, 開腹に移行し胃全摘術を行った. 病理組織学的診断では潰瘍部に中分化腺癌を認め, 深達度はmpであった. また, 膿瘍を形成する好中球浸潤を全層に認め, 一部菌塊を伴っていた. 全層性の壊死を伴っている部位も認めた. 胃壊死の原因としては, 癌の潰瘍部からの感染が考えられた. まれな症例と考えられたので, 文献的考察を加え報告する.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1996

Treatment of Acute Pulmonary Embolism after Gastroenterological Surgery. Report of Four Cases.

Osamu Kawamata; Akira Nakashima; Shizou Sato; Youichi Kurozumi; Masahiro Aoyama; Yukinobu Maruo; Shinji Ishizuka; Yasuki Nitta; Toshihito Inoguchi; Yoshio Yamamura; Akira Nabeyama; Yasuo Okada

肺塞栓症は近年増加の傾向にあり, 急死の一因となることも認識されてきた.われわれは1993年1月より1994年12月までの2年間に4例の急性肺塞栓症を経験した.これはこの時期に経験した全麻下消化器外科症例の0.45%に相当した.全例肺動脈撮影で診断し, 同時にカテーテルよりurokinaseを投与した.末梢よりヘパリンの持続投与も併用し, 全例救命した.抗凝固療法によると思われる合併症は経験せず, 急性肺塞栓症にはカテーテルよりの肺動脈内urokinase投与と末梢からのヘパリン持続静注が有効であると思われた.


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1993

A RESECTED CASE OF DOUBLE CANCER, SMALL LIVER AND COLON CANCERS

Shizo Sato; Akira Nakajima; Ryuichi Kawashima; Kazuyoshi Ohta; Akira Endo; Kyouhei Kai; Nozomu Sasahashi; Osamu Kawamata; Takashi Mori; Akira Nabeyama; Yasuo Okada; Yoshio Kuremoto

We experienced a resected case of small liver cancer one year and 2 months after resection of a colon cancer in a 33-year-old man. He had undergone right hemicolectomy for a ceacal cancer and the ascending colon polyps, and resection of a duodenal polyp. After that, the level of α-fetoprotein increased. A small liver cancer 1.5cm in size was detected and anterior segmentectomy was carried out. This case was the youngest one reported in the double cancer of hepatocellular carcinoma and extrahepatic malignancies. Two cases of hepatocellular carcinoma and two cases of colon cancer were seen in his family. The family element was suggested in the cause of these cancers. This case reconfirmed the importance of the family history in the early diagnosis and treatment of the cancer.


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2009

A CASE OF MUCOSA-ASSOCIATED LYMPHOID TISSUE LYMPHOMA OF THE LIVER MIMICKING A METASTATIC LIVER TUMOR OF GASTRIC CANCER

Toshihiro Murata; Hirokazu Uetsuka; Masashi Uda; Osamu Kawamata; Hajime Nakai; Tamotsu Ohta


The Journal of The Japanese Association for Chest Surgery | 2008

Usefulness of TissueLink in surgery for lung bullae-The results of a multi-institutional clinical study-

Masashi Uomoto; Yasuki Hachisuka; Masafumi Kataoka; Osamu Kawamata; Doufu Hayashi; Fumiyuki Inoue; Noriaki Tanaka


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2011

A CASE OF HEPATIC ACTINOMYCOSIS

Toshihiro Murata; Nobuhito Kubota; Hirokazu Uetsuka; Masashi Uda; Osamu Kawamata; Hajime Nakai


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2008

A CASE OF UNDIFFERENTIATED PANCREATIC CANCER WITH EXTRAPANCREATIC GROWTH

Hajime Nakai; Toshihiro Murata; Hirokazu Uetsuka; Masasi Uda; Osamu Kawamata; Tamotsu Ota


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1998

TWO SUCCESSFULLY TREATED CASES OF DESCENDING NECROTIZING MEDIASTINITIS CAUSING DEEP CERVICAL INFECTION BY TRANSCERVICAL DRAINAGE AND MEDIASTINAL DRAINAGE WITH VIDEO ASSISTED THORACOTOMY

Osamu Kawamata; Masahiro Aoyama; Shizou Sato; Akira Nakashima; Akira Nabeyama


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1987

A CASE REPORT OF ACUTE PANCREATITIS AND HYPERPARATHYROIDISM IN PREGNANCY

Osamu Kawamata; Masamitsu Enomoto; Tetsuya Watanabe; Mikio Makabe; Jun Nakamura; Akira Sasaki; Kazuhiko Kataoka; Eiji Konaga; Yoshikuni Ide; Fumio Araki


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1987

THE CLINICAL USEFULNESS OF CARBOHYDRATE ANTIGEN 19-9 (CA19-9) IN VARIOUS DISEASES

Kazuo Tanemoto; Eiji Konaga; Hitoshi Takeuchi; Takenori Kawamura; Tetsuya Watanabe; Osamu Kawamata; Katsuyuki Nakanishi; Kazuhiko Kataoka; Mikio Makabe; Jun Nakamura; Yoshimasa Tsushima; Akira Sasaki; Masamitsu Enomoto; Masaki Murayama; Atsushi Arata; Yoshikuni Ide

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Akira Nabeyama

University of Pittsburgh

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Akira Sasaki

Japan Atomic Energy Agency

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